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коллекция "otherreferats"
Главная Коллекция "Otherreferats" Биология и естествознание
  • 271. RAPD-аналіз природних ізолятів гриба Pleurotus ostreatus (Jacq.: Fr.) Kummer

    Аналіз полімеразної ланцюгової реакції й генетичного поліморфізму Pleurotus ostreatus. Виявлення рівня поліморфізму при ампліфікації з праймерами ОРР-12, ОРР-15, ОРР-17. Дослідження відмінностей у генетичній диференціації між дослідженими зразками.

    статья (167,3 K)
  • 272. Recent advances in plant biotechnology and genetic engineering for production of secondary metabolites

    Plants are a source of biologically active substances. Using modern genetic engineering techniques in pharmaceutical biotechnology. Examples of advanced systems used to obtain some valuable natural products - artemisinin, paclitaxel and scopolamine.

    статья (147,3 K)
  • 273. Regularities of distribution of feed plants in the vegetation of Gunnut-Kapychik physical-geographical region

    Feed plants are dynamically utilized by humans. This leads to a decreasing supply of feed plants. For this purpose, we studied the rare species of feed plants in the vegetation of Gunnut-Kapychik physiographic area where we conducted our research.

    статья (24,2 K)
  • 274. REP-ПЛР аналіз збудників бактеріальних хвороб ріпаку

    Аналіз профілів дванадцяти ізольованих та десяти типових штамів бактерій родів Pseudomonas, Xanthomonas та Pectobacterium, патогенних для ріпаку. Вивчення генотипових властивостей мікроорганізмів. Значення ріпаку для народного господарства в Україні.

    статья (1,0 M)
  • 275. Representatives of foraminifera

    The characteristics of belonging of the order foraminiferida (informally foraminifera). Analyzes of foraminifera (forms for short) as a single-celled organisms (protists) with shells or tests (a technical term for internal shells). Describing its size.

    презентация (450,6 K)
  • 276. Reptiles and humans

    Reptiles - tetrapods and amniotes: a review of the species distribution, the modern classification; economic, aesthetic, symbolic and ecological value for human; functions herpetologist. The evolution of reptiles, physiological systems of their life.

    реферат (21,2 K)
  • 277. Resource potential of the genus Sorbus l. plants as source of metabolites with anti-inflammatory activity

    Assessment of the anti-inflammatory ability of rowan plants by the degree of inhibition of thermal denaturation of albumin by plant leaf extracts in comparison with the effect of synthetic drug diclofenac. Criterion for selecting the best plant material.

    статья (104,7 K)
  • 278. Restriction of the growth of T7-like phages by plasmid prophage P1

    T7-like phages as an example of the preservation of the genome. The development of a system to study at the genetic level, interactions of bacteriophages with cells of native and uncommon hosts. Interaction of active phages with propagate their elements.

    творческая работа (471,4 K)
  • 279. Results of remote sensing of a leopard (Panthera pardus saxicolor, Pocock, 1927) in the Aliyev Zangezur national park of the Nakhchivan autonomous republic of Azerbaijan

    Taxonomic hierarchy of vertebrate fauna in Azerbaijan. A study of the habitat of leopards on the eastern slopes of the Zangezur range in the national park on the territory of the Nakhichevan Autonomous Republic, based on materials from camera traps.

    статья (2,6 M)
  • 280. Robert Koch is the founder of Microbiology

    Biography of Robert Koch. Education and work at Berlin University. Study of microscopic organisms. The wording of the postulates that bind a particular organism with a particular disease. The Nobel Prize for their discoveries in relation to tuberculosis.

    презентация (1,3 M)
  • 281. Role des bacteries symbiotiques dans le succes invasif et la dangerosite agronomique de leurs hotes: cas de l’aleurode bemisia tabaci

    La presence de Rickettsia est associe avec une grande sensibilite du tabac bemisia. Thermotolerance et de l'expression des genes apres le stress de chaleur dans blanc de l'ailetabac Bemisia B et Q biotypes. Mutuelles de pucerons et les procaryotes.

    статья (171,7 K)
  • 282. Rumex stenophyllus Ledeb. (Polygonaceae Juss.) в Средней Сибири

    При исследовании флоры Красноярска был найден заносный вид - Rumex stenophyllus Ledeb., указания на который не имеют подтверждения гербарными образцами. Данные о местонахождении этого вида в Туве по материалам Красноярского краевого краеведческого музея.

    статья (23,4 K)
  • 283. Ruppia maritima (Ruppiaceae) — новий вид у водоймах м. Донецька

    Ruppia maritima L., або рупія морська як водна однодольна рослина з родини Ruppiaceae, яка мешкає в солонуватих водоймах і мілководдях морів. Включення рослини до списків рідкісних рослин. Моніторинг популяцій та створення охоронних зон локалітетів.

    статья (132,6 K)
  • 284. Saccharomyces cerevisiae как модельный объект в генетических исследованиях

    Использование дрожжей Saccharomyces cerevisiae в производствах хлебопечения, виноделия, пивоварения, производстве спирта и белково-витаминных препаратов. Генетические исследования дрожжей в качестве универсального и уникального модельного объекта.

    статья (14,9 K)
  • 285. Salmine and the homeotic integrity of early embryos of Norway spruce

    Metabolism of Tritiated Water during Imbibition and Germination of Jack Pine Seeds. Protein Ubiquitination in Diploid Parthenogenesis and Embryos of Norway spruce. Mechanism of Pattern Formation in Plant Embryogenesis. Hormonal Control and Embryogenesis.

    статья (93,9 K)
  • 286. Scale-Up of the Downstream Process for Polyhydroxyalkanoate Copolymer P(HB-co-HHx) Extraction with Nonhalogenated Solvents

    Study of the extraction of a copolymer of hydroxybutyrate and hydroxyhexanoate (PHA) using acetone and 2-propanol. Analysis of properties of PHA samples. Substantiation of the efficiency of precipitation of the polymer obtained by double extraction.

    статья (220,7 K)
  • 287. Senecio anastasioi (Asteraceae/Compositae: Senecioneae), a new caespitose species from the South Andes of Peru

    Senecio anastasioi Montesinos, a new species of Asteraceae/Compositae: Senecioneae allied to Senecio ser. Suffruticosi subser. Caespitosi, is described from the Andean regions located in South Peru. The differences between these species are identified.

    статья (4,7 M)
  • 288. Serpins’ reactive sites loops mobility and its functional value

    Comparison of the properties of serpins among themselves and with protein inhibitors of other families. Role of the mobility of the loop of the reactive center in ensuring the selectivity of the inhibitors. Amino acid sequence of human plasminogen.

    статья (1,0 M)
  • 289. Short-term heating causes thylakoid restructuring in pea chloroplasts and modifies spectral properties of pigment-protein complexes

    The effect of short-term heating on ultrastructure of the pea chloroplasts and the spectral characteristics of the subchloroplast fragments has been investigated. The size of chloroplasts decreased at heating for 5 min in the darkness at either 25 or 45C.

    статья (1,1 M)
  • 290. Skin and muscle

    Features of human skin. The concept of the epidermis, its role in protecting the body against aggressive environment. Features of occurrence scar tissue. The structure of the muscular system, the concept of fascia. The mechanism of muscle contraction.

    презентация (4,1 M)
  • 291. Snow leopard

    The snow leopard is a large predatory mammal from the cat family. The habitat, body structure and weight of the animal. Diet, life expectancy in the wild and captivity. The length of the jump when hunting. The main threat to the life of a predator.

    презентация (1,4 M)
  • 292. Snow leopard

    Population and distribution. Biology and behavior. Ways to protect, threats to the snow leopard. The snow leopard is a carnivore and typically eats wild sheep and goats. The snow leopard is a moderately large cat native to the mountain ranges of Asia.

    презентация (4,9 M)
  • 293. Soil contamination with heavy metals and remediation measures

    Note a decrease in intensity of soil contamination of agricultural honey plants by heavy metals for the use of siderates. The use of green manure resulted reduction in intensity of soil pollution of agricultural land with lead, cadmium, zinc and copper.

    статья (243,1 K)
  • 294. Soil ecomorphs as a form of adaptation to the conditions of biogeocenosis

    Study of the variability of the hardness of ordinary black soil on a regular grid. Ecomorphic analysis of vegetation in each polygon cell. The ecological content of the division of soil areas into clusters. Ecomorphs - a form of adaptation of vegetation.

    статья (970,3 K)
  • 295. Some aspects of the relationship between redox metabolism and the structure of calciphytes

    Relationships between the antioxidant status and the structural features of some representatives of the calciphytic flora. Evaluation of redox metabolism by leaf hydration, content of photosynthetic pigments, phenolic compounds, water-soluble proteins.

    статья (32,5 K)
  • 296. Some new ichnospecies stored in the Geological Department of the National Museum of Natural History, NAS of Ukraine

    Identification of new ichnospecies of different geological ages together with images of tracks of unknown animals. Technological approaches that allow determining the conditions of the geological past and are used in the search for oil and gas deposits.

    статья (13,5 M)
  • 297. Some problems of taxonomy of the pteraspids (aqnatha, heterostraci) from Podolia (Ukraine)

    Consideration kind Podolaspis Zych of three types: podolica Alth, lerichei and zychi. The first description and nomenclature discrepancy delivery Parapteraspis and Mylopteraspis Stensio. Species variability pteraspid - morphology orbitsphere pineal belt.

    статья (154,2 K)
  • 298. Some untoward effects associated with the use of the biopreparation from Рicralima nitida seeds extract as antidiabetic agent

    Study of antioxidant properties and some adverse effects that can be associated with the use of P. nitida as hypoglycemic agent, used in some biochemical and histological studies. Analysis of biochemical studies of blood plasma and the lipid profile.

    статья (349,4 K)
  • 299. Species included in the genus Sorbus L. which spread in the flora of the Nakhchivan Autonomous Republic

    The identifies the types of Sorbus L plants that are new to the flora of the Nakhchivan Autonomous Republic. The research includes information on species synonyms, distribution patterns in altitude zones, biotope, flowering and fruit ripening periods.

    статья (25,3 K)
  • 300. Spread and morphological-structural properties of plant rhabdoviruses and similar pathogens in Basidiomycetes

    Distribution of rhabdoviruses, their harmfulness to different types of plants in conditions of environmental factors. Comparative characteristics of rhabdoviruses with similar pathogens on the pileate fungi. The morphology and structure of the pathogens.

    статья (564,9 K)

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